Chemistry Numericals
Calculation for the number of electrons that flow through a metallic wire (using log table) -Electrochemistry
Question: How many electrons flow through a metallic wire if a current of 0.5 A is passed for 2 hours? (Given: 1F= 96,500 C/mol)
Solution:
Calculation for the time taken for a first order reaction to complete to 75% (using log table)- Chemical Kinetics
A first order reaction takes 20 minutes for 25% decomposition. Calculate the time when 75% of the reaction will be completed. Given: log 2= 0.3010 log 3= 0.4771 log 4=0.6021
Solution:
Predict the Formula of the Ionic Compound from the Electronic Configuration
The electronic configuration of two elements A and B are -
A- 1s2 2s2 2p6 3s2 3p6 4s2
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